Which statement best explains why united states entered world war i in 1917? a) the japanese launched a surprise attack on the u. s. eliminateb) the u. s. citizens were calling for war against germany. c) the german navy had sunk the lusitania that year. d) the u. s. had evidence of a threat to its national security.

Its D) The U.S. had evidence of a threat to national security.

the correct answer that would best complete the given statement above would be option b. expanding civil services. diocletian and constantine paved the way for foreign invasion by dividing the empire, creating administrative bureaucracies and reorganizing the military, except for expanding civil services. hope this answer .

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i actually have a suggestion instead of an answer, how about next time instead of spending the time to time up the question you take that time and try to figure something out for yourself, do you understand?

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leave a 5 star and a and brainliest answer if you understand, hope this betters you day, or not i don't really care either way. xd